Geometriya

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$ABCD$ - trapetsiya; $\angle BAD = 65^{\circ}$; $\angle ABC = x = ?$ $ABCD$ - trapetsiya; $\angle BAD = 2x - 10^{\circ}$; $\angle ABC = 3x + 10^{\circ}$; $x=?$ $ABCD$ - trapetsiya; $\angle BAD = 2x$; $\angle ABC = 3x$; $\angle BCD = 2x + 40^{\circ}$; $\angle ADC = \alpha = ?$ $ABCD$ - trapetsiya; $BE$ va $AE$ bissektrisalar; $\angle BEA=?$

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